Tracks don't render. (fixed, now trying to add ties[dupliframes] )

I’m making a ‘table top’ train set and using the same technique as this tutorial; http://www.blendernation.com/tutorials/blender-3d-beginner-tutorial-a-ride-through-the-mines/
I can get the rail attached to the path and it renders fine, but after working with it, extruding some track etc, the rails disappear, leaving just the ties :frowning:
What am I doing wrong?
http://members.shaw.ca/pamric/PathBug.blend

Turn off dupliframes on curve.001 and it shows up.

Turn off dupliframes on curve.001 and it shows up.
( groan… I feel like such a noob.)
Thanks I thought I needed that for the ties, but apparently not.

Hey, it took me like 15 minutes to figure that out and I did it by accident more or less (or possible just ruling everything out on other pages), so I’m not doing that great either :D.

Theres a lot to Blender. I often stumble on to a fix, then I make a point of thinking so I don’t keep stumbling. :eyebrowlift2:
Now I trying to add more ties to the track. ‘Dupend’ doesn’t seem to do it. Any ideas?